@misc{indiciae82077e83e0a2,
  title = {Evaluation of trends in pH in the Yampa River, northwestern Colorado, 1950-2000},
  author = {Daniel T. Chafin},
  year = {2002},
  doi = {10.3133/wri024038},
  url = {https://pubs.usgs.gov/publication/wri024038},
  note = {Source identifier: wri024038}
}